The present invention is to provide a process for preparing a 4-aminopyrimidine compound represented by the formula (3):
wherein R
1
and R
2
each represent a hydrogen atom or group which does not participate in the reaction and which may have a substituent(s), and R
1
and R
2
may be bonded to each other to form a ring, and R
4
represents a hydrogen atom or a hydrocarbon group, which comprises reacting ammonia, a 3-substituted or unsubstituted acrylonitrile compound represented by the formula (1):
CR
1
(CN)═CR
2
Y (1)
wherein R
1
and R
2
have the same meanings as defined above, and Y represents an amino group or OR, where R represents a hydrogen atom or a hydrocarbon group, and an organic acid compound represented by the formula (2):
(R
3
O)
3
CR
4
(2)
wherein R
3
represents a hydrocarbon group, and R
4
has the same meaning as defined above.
本发明提供了一种制备由以下式表示的4-
氨基嘧啶化合物的方法(3):其中R1和R2分别表示参与反应的氢原子或基团,可能具有取代基,且R1和R2可以相互连接形成环,R4表示氢原子或烃基,包括将
氨、由以下式表示的3-取代或未取代的
丙烯腈化合物(1):CR1(CN)═CR2Y(1)与由以下式表示的有机酸化合物(2)反应:(R3O)3CR4(2)。其中R1和R2的含义如上定义,Y表示
氨基或OR,其中R表示氢原子或烃基,R3表示烃基,R4的含义如上定义。